public class HomeWork {
    public static void main(String[] args) throws InterruptedException {
        Object locker1 = new Object();
        Object locker2 = new Object();
        Object locker3 = new Object();
        Thread t1 = new Thread(() -> {
            synchronized (locker3) {
                try {
                    locker3.wait();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                System.out.println(Thread.currentThread().getName());
            }
        },"a");

        Thread t2 = new Thread(() -> {
            synchronized (locker2) {
                try {
                    locker2.wait();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
                System.out.println(Thread.currentThread().getName());
            synchronized (locker3) {
                locker3.notify();
            }
        },"b");

        Thread t3 = new Thread(() -> {
            synchronized (locker1) {
                try {
                    locker1.wait();
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }
                System.out.println(Thread.currentThread().getName());
            synchronized (locker2) {
                locker2.notify();
            }
        },"c");

        t1.start();
        t2.start();
        t3.start();

        Thread.sleep(1000);
        synchronized (locker1) {
            locker1.notify();
        }
    }
}
